I agree with this, I'd love to know how the categories are listed like that down the side!
Exodo theme is public on our github
Nodebb theme exodo, branch 2.0
Is a bit difficult to fit on another community cause you need modified widgets and some exodo tweaks but all is on our github
Is only compatible with nodebb 0.7.x
Been working on new version but not finished yet
@Mruk perhaps I'm bring a little too optimistic/naive in hoping that all forum softwares could be exporting to a common format (and co-exist happily 😆), but even that comes with its own caveats, namely in that it'd only be able to support the lowest common denominator, so just posts, topics, and categories.
The Redis (or MongoDB) dump file would be the best resource for the data, though, yes...